两者在在定语从句中充当的成分不同。
比如:
which引导定语从句的时候,在从句中作主语,宾语或表语。这个句子的先行词是place,which代place在从句中作want to的宾语.
where引导定语从句的时候,在从句中作地点状语,where=介词+which.
例句:
I grew up in the small village where I was
born.(where引导定语从句,先行词是village,且在从句中作地点状语)
This is the place which we visited last time.(which引导定语从句,先行词是place,且在从句中作ivisit的宾语)
This is the place where we saw each other last time.(where引导地点状语从句,且在从句中作地点状语)